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Heat Transfer in Water-Based SiC and TiO_2 Nanofluids

机译：水基SiC和TiO_2纳米流体的传热

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摘要

The article reports the results of heat transfer experimental tests on water-based TiO_2 (9 wt%) and SiC, (3, 6, 9 wt%) nanofluids. Measurements were performed in a two-loop test rig for immediate comparison of the thermal performances of the nanofluid with the base fluid. The convective heat transfer is evaluated in a circular pipe heated with uniform heat flux (from 20 to 240 kW/m2) and flow regimes from laminar to turbulent. Tests have been performed to compare the heat transfer of nanofluids and water at the same velocity (from 0.7 to 1.6 m/s) or Reynolds number (from 300 to 6000), and they have also been compared with values calculated from some of the most widely used correlations. The analysis of the experimental data shows a strong dependence on the parameter used, while both the nanofluid and water data have the same agreement with the calculated values. Nanofluids were manufactured through a two-step procedure: laser synthesis of nanoparticles followed by dispersion in water.
机译：该文章报告了水基TiO_2（9 wt％）和SiC（3，6，9 wt％）纳米流体的传热实验结果。在两回路试验台中进行测量，以立即比较纳米流体与基础流体的热性能。对流传热是在圆管中进行评估的，该圆管以均匀的热通量（从20到240 kW / m2）和从层流到湍流的流动状态进行加热。已进行测试以比较纳米流体和水在相同速度（0.7至1.6 m / s）或雷诺数（300至6000）下的传热，并且还将它们与从某些广泛使用的相关性。对实验数据的分析显示出对所用参数的强烈依赖性，而纳米流体和水的数据与计算值具有相同的一致性。纳米流体通过两步过程制造：激光合成纳米颗粒，然后分散在水中。

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  • 来源
    《Heat Transfer Engineering》 |2013年第15期|1060-1072|共13页
  • 作者

    GIAN PIERO CELATA; FRANCESCO DANNIBALE; ANDREA MARIANI; LUCA SARACENO; ROSARIA DAMATO; ROBERTO BUBBICO;

  • 作者单位

    ENEA Laboratory of Thermal Fluid Dynamics, Rome, Italy;

    ENEA Laboratory of Thermal Fluid Dynamics, Rome, Italy;

    ENEA Laboratory of Thermal Fluid Dynamics, Rome, Italy;

    ENEA Laboratory of Thermal Fluid Dynamics, Rome, Italy;

    ENEA Technical Unit Development of Applications of Radiations, Rome, Italy;

    Sapienza University of Rome, Rome, Italy;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
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